src/modules/m_spanningtree/compat.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2010 InspIRCd Development Team
   6  * See: http://wiki.inspircd.org/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *            the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 #include "inspircd.h"
  15 #include "main.h"
  16 #include "treesocket.h"
  17
  18 static const char* const forge_common_1201[] = {
  19         "m_allowinvite.so",
  20         "m_auditorium.so",
  21         "m_banexception.so",
  22         "m_blockcaps.so",
  23         "m_blockcolor.so",
  24         "m_botmode.so",
  25         "m_censor.so",
  26         "m_chanfilter.so",
  27         "m_chanhistory.so",
  28         "m_chanprotect.so",
  29         "m_chghost.so",
  30         "m_chgname.so",
  31         "m_commonchans.so",
  32         "m_deaf.so",
  33         "m_delayjoin.so",
  34         "m_delaymsg.so",
  35         "m_exemptchanops.so",
  36         "m_helpop.so",
  37         "m_hidechans.so",
  38         "m_hideoper.so",
  39         "m_invisible.so",
  40         "m_inviteexception.so",
  41         "m_joinflood.so",
  42         "m_kicknorejoin.so",
  43         "m_messageflood.so",
  44         "m_nickflood.so",
  45         "m_noctcp.so",
  46         "m_nokicks.so",
  47         "m_nonicks.so",
  48         "m_nonotice.so",
  49         "m_ojoin.so",
  50         "m_operprefix.so",
  51         "m_permchannels.so",
  52         "m_redirect.so",
  53         "m_regex_glob.so",
  54         "m_regex_pcre.so",
  55         "m_regex_posix.so",
  56         "m_regex_tre.so",
  57         "m_remove.so",
  58         "m_sajoin.so",
  59         "m_sakick.so",
  60         "m_sanick.so",
  61         "m_sapart.so",
  62         "m_saquit.so",
  63         "m_servprotect.so",
  64         "m_setident.so",
  65         "m_silence.so",
  66         "m_sslmodes.so",
  67         "m_stripcolor.so",
  68         "m_swhois.so",
  69         "m_watch.so"
  70 };
  71
  72 static std::string wide_newline("\r\n");
  73 static std::string newline("\n");
  74
  75 void TreeSocket::CompatAddModules(std::vector<std::string>& modlist)
  76 {
  77         if (proto_version < 1202)
  78         {
  79                 // you MUST have chgident loaded in order to be able to translate FIDENT
  80                 modlist.push_back("m_chgident.so");
  81                 for(int i=0; i * sizeof(char*) < sizeof(forge_common_1201); i++)
  82                 {
  83                         if (ServerInstance->Modules->Find(forge_common_1201[i]))
  84                                 modlist.push_back(forge_common_1201[i]);
  85                 }
  86                 // module was merged
  87                 if (ServerInstance->Modules->Find("m_operchans.so"))
  88                 {
  89                         modlist.push_back("m_operchans.so");
  90                         modlist.push_back("m_operinvex.so");
  91                 }
  92         }
  93 }
  94
  95 void TreeSocket::WriteLine(std::string line)
  96 {
  97         if (LinkState == CONNECTED)
  98         {
  99                 if (line[0] != ':')
 100                 {
 101                         ServerInstance->Logs->Log("m_spanningtree", DEFAULT, "Sending line without server prefix!");
 102                         line = ":" + ServerInstance->Config->GetSID() + " " + line;
 103                 }
 104                 if (proto_version != ProtocolVersion)
 105                 {
 106                         std::string::size_type a = line.find(' ');
 107                         std::string::size_type b = line.find(' ', a + 1);
 108                         std::string command = line.substr(a + 1, b-a-1);
 109                         // now try to find a translation entry
 110                         // TODO a more efficient lookup method will be needed later
 111                         if (proto_version < 1202 && command == "FIDENT")
 112                         {
 113                                 ServerInstance->Logs->Log("m_spanningtree",DEBUG,"Rewriting FIDENT for 1201-protocol server");
 114                                 line = ":" + ServerInstance->Config->GetSID() + " CHGIDENT " +  line.substr(1,a-1) + line.substr(b);
 115                         }
 116                         else if (proto_version < 1202 && command == "SAVE")
 117                         {
 118                                 ServerInstance->Logs->Log("m_spanningtree",DEBUG,"Rewriting SAVE for 1201-protocol server");
 119                                 std::string::size_type c = line.find(' ', b + 1);
 120                                 std::string uid = line.substr(b, c - b);
 121                                 line = ":" + ServerInstance->Config->GetSID() + " SVSNICK" + uid + line.substr(b);
 122                         }
 123                         else if (proto_version < 1202 && command == "AWAY")
 124                         {
 125                                 if (b != std::string::npos)
 126                                 {
 127                                         ServerInstance->Logs->Log("m_spanningtree",DEBUG,"Stripping AWAY timestamp for 1201-protocol server");
 128                                         std::string::size_type c = line.find(' ', b + 1);
 129                                         line.erase(b,c-b);
 130                                 }
 131                         }
 132                         else if (proto_version < 1202 && command == "ENCAP")
 133                         {
 134                                 // :src ENCAP target command [args...]
 135                                 //     A     B      C       D
 136                                 // Therefore B and C cannot be npos in a valid command
 137                                 if (b == std::string::npos)
 138                                         return;
 139                                 std::string::size_type c = line.find(' ', b + 1);
 140                                 if (c == std::string::npos)
 141                                         return;
 142                                 std::string::size_type d = line.find(' ', c + 1);
 143                                 std::string subcmd = line.substr(c, d - c);
 144                                 Command* thiscmd = ServerInstance->Parser->GetHandler(subcmd);
 145                                 if (thiscmd)
 146                                 {
 147                                         Version ver = thiscmd->creator->GetVersion();
 148                                         if (ver.Flags & VF_OPTCOMMON)
 149                                         {
 150                                                 ServerInstance->Logs->Log("m_spanningtree",DEBUG,"Removing ENCAP on '%s' for 1201-protocol server",
 151                                                         subcmd.c_str());
 152                                                 line.erase(a, c-a);
 153                                         }
 154                                 }
 155                         }
 156                 }
 157         }
 158
 159         ServerInstance->Logs->Log("m_spanningtree",DEBUG, "S[%d] O %s", this->GetFd(), line.c_str());
 160         this->WriteData(line);
 161         if (proto_version < 1202)
 162                 this->WriteData(wide_newline);
 163         else
 164                 this->WriteData(newline);
 165 }